Answer: False.
Explanation:
By definition, a relation is a function if each input value has only one output value.
Knowing this, we can say that in a mapping diagram, a function will never have two arrows coming from the same input value.
In other words, if in a mapping diagram a relation has two arrows coming from the same input value, this means that this input value has two output values, and according to the definition mentioned above, this relation cannot be a function.
Therefore, the statement "In a mapping diagram, a relation that is a function can have two arrows coming from the same input value", is FALSE.